Body ownership: When feeling and knowing diverge
Copyright policy )Body ownership: When feeling and knowing diverge
Individuals with the peculiar disturbance of 'overcompleteness' experience an intense desire to amputate one of their healthy limbs, describing a sense of disownership for it (Body Integrity Identity Disorder - BIID). This condition is similar to somatoparaphrenia, the acquired delusion that one's own limb belongs to someone else. In ten individuals with BIID, we measured skin conductance response to noxious stimuli, delivered to the accepted and non-accepted limb, touching the body part or simulating the contact (stimuli approach the body without contacting it), hypothesizing that these individuals have responses like somatoparaphrenic patients, who previously showed reduced pain anticipation, when the threat was directed to the disowned limb. We found reduced anticipatory response to stimuli approaching, but not contacting, the unwanted limb. Conversely, stimuli contacting the non-accepted body-part, induced stronger SCR than those contacting the healthy parts, suggesting that feeling of ownership is critically related to a proper processing of incoming threats.
- University of Milan Italy
- University of Zurich Switzerland
- University of Pavia Italy
- University of Milano-Bicocca Italy
- University Hospital of Zurich Switzerland
Adult, Male, Consciousness, Consciousne, BIID; Body; Body representation; Consciousness; Ownership; Pain anticipation; Self awareness; Self consciousness; Somatoparaphrenia; Xenomelia; citalopram; mirtazapine; adult; Article; behavior disorder; body integrity identity disorder; body integrity identity disorder; body regions; clinical article; electrodermal response; female; human; limb amputation; male; middle aged; pain measurement; psychotherapy; threat; agnosia; anticipation; body image; limb; pathophysiology; physiology; psychology; touch; Adult; Agnosia; Anticipation, Psychological; Body Image; Extremities; Female; Galvanic Skin Response; Humans; Male; Middle Aged; Touch Perception;, Self awareness, Self consciousness, 150, Experimental and Cognitive Psychology, 610 Medicine & health, Body representation, Self awarene, Arts and Humanities (miscellaneous), Developmental and Educational Psychology, Body Image, Humans, BIID, Pain anticipation, 3204 Developmental and Educational Psychology, Xenomelia, 3205 Experimental and Cognitive Psychology, BIID; Body; Body representation; Consciousness; Ownership; Pain anticipation; Self awareness; Self consciousness; Somatoparaphrenia; Xenomelia;, Ownership, Extremities, Galvanic Skin Response, Middle Aged, Anticipation, Psychological, Self consciousne, 10040 Clinic for Neurology, Touch Perception, Somatoparaphrenia, Agnosia, Female, Body
Adult, Male, Consciousness, Consciousne, BIID; Body; Body representation; Consciousness; Ownership; Pain anticipation; Self awareness; Self consciousness; Somatoparaphrenia; Xenomelia; citalopram; mirtazapine; adult; Article; behavior disorder; body integrity identity disorder; body integrity identity disorder; body regions; clinical article; electrodermal response; female; human; limb amputation; male; middle aged; pain measurement; psychotherapy; threat; agnosia; anticipation; body image; limb; pathophysiology; physiology; psychology; touch; Adult; Agnosia; Anticipation, Psychological; Body Image; Extremities; Female; Galvanic Skin Response; Humans; Male; Middle Aged; Touch Perception;, Self awareness, Self consciousness, 150, Experimental and Cognitive Psychology, 610 Medicine & health, Body representation, Self awarene, Arts and Humanities (miscellaneous), Developmental and Educational Psychology, Body Image, Humans, BIID, Pain anticipation, 3204 Developmental and Educational Psychology, Xenomelia, 3205 Experimental and Cognitive Psychology, BIID; Body; Body representation; Consciousness; Ownership; Pain anticipation; Self awareness; Self consciousness; Somatoparaphrenia; Xenomelia;, Ownership, Extremities, Galvanic Skin Response, Middle Aged, Anticipation, Psychological, Self consciousne, 10040 Clinic for Neurology, Touch Perception, Somatoparaphrenia, Agnosia, Female, Body
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